4Videosoft Zune Video Converter for Mac is especially designed for Zune users to convert almost all video and audio formats to Zune on Mac with excellent conversion quality and speed. Moreover, this Zune Video Converter for Mac possesses additional functions: set output effect by adjusting Brightness, Contrast and Saturation, get any video clips from source video, crop video play screen, merge several video segments into one, and add text and picture watermark for video. All these operations bring you personalized video effect.